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sethjohnson386pbnm3x
03.09.2020 •
Physics
A car stops in 120 m. If it has an acceleration of –5m/s 2 , how long did it take to stop
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Ответ:
t=240s
Explanation:
Distance=120m
Acceleration=-5m/s^2
v=0
Let u=x m/s
Using equation v^2-u^2=2as:-
0-x=2(-5)(120)
-x=-1200
x=1200m/s
Using now equation v=u+at:-
0=1200+-5t
5t=1200
t=240s
Ответ:
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↬ ʜᴀɴɴᴀʜ ♡